While mostly calm, tranquil, and unemotional, Mesogog is a sadistic, evil, sinister, manipulative and cold-hearted mastermind who will do anything in his power to ensure his dream of bringing the Earth back into the age of the dinosaurs is brought to fruition. Mesogog was also highly authoritative and aggressive, as Elsa and Zeltrax feared him, enough to obey any order from him and try not to incur his wrath. Adoptive father of Trent Fernandez-Mercer. Enemies with the Dino Thunder Power Rangers.